[ChuckingFluff]

2007 forester base X Sitting in very heavy traffic the alternator and parking break light came on at the same time, this is the first time ever seeing this light and I’ve never had any issues with the battery or charging. Rather than mess around I put in a new battery, new alternator and a new belt. The lights still on. With the car off I’m 12.4v at the battery with the car on it drops to 12v. Ugh, I removed, cleaned and all the ground wires with the same results. No idea where to look next

 

[Easy Fixer]

@ChuckingFluff Check the fuse box for burned out fuses, consult a wiring diagram for in line fuses. Check continuity of wiring with voltmeter.

 

[GuusV]

@ChuckingFluf When I replaced my alternator in my 2004 XT a couple of years ago, I also ended up with the same result. Took the alternator back to the shop and had them test it. It was no good! They gave me a new one. Problem solved.

(It really wouldn't surprise me if they put the one that was no good back on the shelf)